Spin Polarized Transport in an AC-Driven Quantum Curved Nanowire | Zendy

Walid A. Zein | Zendy; Nabil A. Ibrahim | Zendy; Adel H. Phillips | Zendy

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Spin Polarized Transport in an AC-Driven Quantum Curved Nanowire

Author(s) -

Walid A. Zein,

Nabil A. Ibrahim,

Adel H. Phillips

Publication year - 2011

Publication title -

physics research international

Language(s) - English

Resource type - Journals

eISSN - 2090-2239

pISSN - 2090-2220

DOI - 10.1155/2011/505091

Subject(s) - nanowire , condensed matter physics , quantum tunnelling , magnetoresistance , conductance , effective mass (spring–mass system) , spin (aerodynamics) , photon , physics , materials science , polarization (electrochemistry) , spin–orbit interaction , semiconductor , microwave , optoelectronics , quantum mechanics , chemistry , magnetic field , thermodynamics

Using the effective-mass approximation method, and Floquet theory, we study the spin transport characteristics through a curved quantum nanowire. The spin polarization, P, and the tunneling magnetoresistance, TMR, are deduced under the effect of microwave and infrared radiations of wide range of frequencies. The results show an oscillatory behavior of both the spin polarization and the tunneling magnetoresistance. This is due to Fano-type resonance and the interplay between the strength of spin-orbit coupling and the photons in the subbands of the one-dimensional nanowire. The present results show that this investigation is very important, and the present device might be used to be a sensor for small strain in semiconductor nanostructures and photodetector

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